Topics: Soil Analytical Techniques, Analytical Laboratory, Quality Assurance Control, Precision, Accuracy, Laboratory Chemicals, soil sampling, plant sampling, Nitrogen Determination, Phosphorus Determination, Potassium Determination, Colorimeter, Flame Photometer, Atomic Absorption Spectrophotometer

Topics: Analytical Techniques In Agriculture, safety quality, precision, accuracy, Animal Feed Sample Analysis, Soil Samples Analysis, Plant Sampling, soil sampling, soil sample preparation, microscopy, Atomic Absorption Spectrophotometer, High-performance liquid chromatography, Thin Layer Chromatography, Gas Chromatography, Polymerase Chain Reaction, Gel Electrophoresis, Hematology, Serum Biochemistry, Sample Conservation, sample Preservation, Cryopreservation

Topics: Genetic Engineering, DNA recombination, protein quality control, plant virus gene vectors, integrins, Myocardium, Transgenic plants, metabolic flux analysis, Gene silencing

Topics: Animal production resources, carbohydrates, fats, vitamins, minerals, water, food classification, feeding stuff classification, feed supplments, dry forages, dry roughages, Energy feeds, Protein Supplements, Mineral Additives, Vitamin Supplements, Nonnutritive Additives, Succulent Feed, Concentrate feeds, cereals, legumes, oil seeds, animal nutrition, Protein quality, Essential fatty acids, Fat soluble vitamins, Oilseed cakes, oilseed meals, Oilseed Processing

Topics: Soil Conservation, Water Conservation, erosion, Soil Erosion and Civilization, Geologic Erosion, Sedimentation, Landscape Development, rock types, Sedimentary Landforms, Mass Movement Deposits, Glacial Landscapes, Water Erosion, erosion damage, Vegetation, Soil Properties, Soil Erodibility, pollution, Water-Erosion Control, Wind Erosion, wind erosion process, Windbreaks, Shelterbelts, Wind-Erosion Control, Predicting Soil Loss, Tolerable Soil Loss, Universal Soil Loss Equation, Computer-Based Soil Loss Prediction Models, Wind-Erosion Prediction Equation, Wind Erosion Prediction System, Soil Map Unit Interpretations, soil survey, Land Use Planning, managing land, cropping systems, Managing Monocultures, crop rotations, Multiple Cropping, Evaluating Cropping Systems, strip cropping, tillage, Conservation Tillage, deep tillage, Contour Cultivation, Emergency Wind-Erosion Control, Gully-Control Structures, road ditches, culverts, Earthen Dams, Streambank Protection, flood control, Wind Erosion-Control Structures, Pastureland Management, Rangeland Management, Forestland Management, water cycle, drought, Soil Drainage, wetlands, Irrigation, Irrigation Methods, Land Reclamation, Conservation Irrigation, soil pollution, pollutants, industrial wastes, agricultural wastes, aerosols, polluted soil, Hazardous Sites, Soil Remediation, Water Quality, water Pollution, Water acidification, Farm Service Agency

Topics: Aquaculture, Environment, Aquaculture Farms, water quality, Hypernutrification, Eutrophication, siting farms, farm design, Animal Wastes, sewage, Heated-water Effluents, water recycling, Aquaculture Waste Production, Feed-derived Waste Products, Metabolic Waste Products, feed loss, Fertilizer-derived Wastes, Algal Blooms, Bacterial Communities, Polyculture, species diversity, disease transmission, genetic dilution, pathogens, aquaculture products safety, microbial contamination, Organochlorines contamination, environmental Contaminants, trace metals contamination, Economic Sustainability, Aquaculture Sustainability, Environmental Sustainability, Aquaculture Development Zones, Environmental Impact Assessment, land use, water use, waste treatment

Topics: Soil Fertility, Fertilizers, global population growth, food consumption, food production, agricultural land use, crop yields, nutrient use, Crop Yield Limiting Factors, buffering capacity, mineral solubility, soil acidity, soil alkalinity, Soil pH Buffering, Reducing Soil Acidity Effects, Calcareous Soils, Saline Soils, Sodic Soils, Saline-Sodic Soils, nitrogen, Biological Fixation, Phosphorus, Phosphorus cycle, soil Phosphorus forms, Phosphorus sources, Potassium cycle, soil Potassium forms, Potassium sources, Sulfur, Calcium, Magnesium, Micronutrients, iron, zinc, coper, Manganese, Boron, chloride, Molybdenum, Nickel, Beneficial Elements, soil fertility evaluation, plant nutrient-deficiency symptoms, plant analysis, greenhouse tests, soil testing, nutrient management, soil characteristics, nutrient placement, Nutrient Interactions, nutrient Economics, Agricultural Productivity, Environmental Quality

Topics: soil science, soil habitat, soil mineral components, soil organisms, soil organic matter, soil structure, soil micromorphology, soil porosity, soil-forming factors, climate, hydrologic cycle, soil temperature, evaporation, cation exchange, Anion adsorption, Clay–organic matter interactions, soil aeration, soil respiration, soil profile, Hydromorphic soils, Salt-affected soils, nutrient cycling, phosphorus, sulphur, potassium, calcium, magnesium, trace elements, soil management, soil acidity, liming, soil erosion, fertilizers, pesticides, nitrogen fertilizers, phosphate fertilizers, plant protection, problem soils, soil drainage, soil information systems, soil survey methods, soil quality

Topics: elements, compounds, atomic theory, chemical reaction, atom constituents, chemical symbols, chemical formulae, chemical reactions, chemical equations, electronic configuration, atomic number, mass numbers, nuclear atom, electronic, energy levels, Ion formations, nuclear reactions, radioactivity, nuclear radiations, nuclear fusion, nuclear fission, radioactivity hazards, chemical bonding, electrovalent bonding, Ionic bonding, electrovalent compounds, covalent bonding, covalent compounds, coordinate covalent bonding, dative covalent bonding, metallic bonding, intermolecular bonding, Van der Waal's forces, dipole-dipole attractions, hydrogen bonding, periodic table, periodic law, transition elements, atomic orbital model, principal quantum number, subsidiary quantum number, azimuthal quantum number, magnetic quantum number, spin quantum number, atomic orbital shape, atomic size, ionic radius, ionization energy, electron affinity, electronegativity, mole concept, melting, vaporization, boiling point, evaporation sublimation, heating graphs, cooling graphs, Boyle's law, Charles's law, Avogadro's law, boiling, solid classification, solid properties, molecular solid, metallic solid, Ionic solid, covalent solid, energy changes, heat content, heat of reaction, exothermic reactions, energy level diagrams, standard state, thermochemical equations, entropy, entropy change, free energy, chemical kinetic, rate of a chemical reaction, temperature, gas pressure, catalyst, activation, reaction rate, collision theory, Le Chatelier's principle, Haber process, contact process, salt hydrolysis, buffer solutions, common Ion effect, solubility product, Acid bases, salt, electrolysis, redox reactions, electrolytic conduction, oxidation, reduction, copper purification, electroplating, quantitative hydrolysis, metal corrosion, iron rusting, carbon, carbon allotropes, Diamond graphite, amorphous carbon, combustion reactions, industrial gas chemistry, metals, alloys, chemical industry, heavy chemicals, fine chemicals, fertilizers, plastics, soaps, detergents, pharmaceuticals, Nigerian chemical industry, aromatic compounds, Alicyclic compound, heterocyclic compound, homologous series, functional groups, isomerism, structural isomerism, geometric isomerism, IUPAC Nomenclature of organic compounds, purification methods, distillation, crystallization, chromatography, empirical formula, molecular formular, alkanes, natural gas, petroleum crude oil, benzene, fractional distillation petrol quality, cracking, isomerization, petrochemicals, alkanols, alkanoic acid, alkenoate, fat, oils, amino acid, polymer chemistry, polymerization processes, condensation polymerization, resins, natural polymers, carbohydrates, proteins, synthetic polymers, water pollution